Fig. 11

Ternary diagrams showing all low TDS waters, inflows into the Qaidam Basin (in eq.%). ‘Blue numbers’ refer to water samples. Chemical divides are presented as ‘red lines’. A Ternary diagram Ca- SO₄-(HCO₃ + CO₃). The ‘blue dotted lines’ show the theoretical development paths for two typical waters in the Na-HCO₃-CO₃-SO₄ field. and the ‘green dotted line’ for water (QD 34) in the Cl-SO₄ field. No samples plot into the Ca–Cl field. B Ternary diagram Mg-SO₄-(HCO₃ + CO₃). The pathways (‘black lines’) result from initial precipitation of calcite, then precipitation of dolomite and magnesite (after Deocampo & Jones, 2014)